NgVirtualScrollView

🚀 High-performance virtual scroll view for Angular apps. Smooth, customizable, and developer-friendly.

⚡A powerful API for implementing scrollers of varying functionality and complexity.

✨Flexible, and actively maintained Angular library that excels with high-performance, feature-rich virtualized scrollers. Angular (14–22) compatibility.

🧬 The main advantage of this solution is that visualization is as close as possible to native scroll containers.

💻 Works correctly in all browsers and platforms.

💪 The software portion of the project was completed without a single line of code written using AI (artificial intelligence)!

Angular version 22.X.X.

Documentation

📦 Installation

npm i ng-virtual-scroll-view

🚀 Quick Start

<ng-virtual-scroll-view #scrollView class="scroll-view" direction="both">
  <div class="scroll-view__background" [style.width.px]="3000" [style.height.px]="3000" [class.grabbing]="scrollView.$grabbing | async"></div>
</ng-virtual-scroll-view>

📚 API

NgVirtualSCrollViewComponent

Inputs

| Property | Type | Description | |---|---|---| | alignment | Alignment | Determines the alignment of the list. Two modes are available: none and center. The center mode aligns the list items to the center of the viewport, ideal for use with the itemTransform property. The none mode means no alignment. The default value is none. | | animationParams | IAnimationParams? = { scrollToItem: 150, snapToItem: 150, navigateByKeyboard: 50 } | Animation parameters. The default value is "{ scrollToItem: 150, snapToItem: 150, navigateByKeyboard: 50 }". | | clickDistance | number? = 40 | The maximum scroll distance at which a click event is triggered. | | direction | Direction? = 'both' | Determines the direction in which elements are placed. Default value is "both". | | id | number | Readonly. Returns the unique identifier of the component. | | langTextDir | TextDirection? = 'ltr' | A string indicating the direction of text for the locale. Can be either "ltr" (left-to-right) or "rtl" (right-to-left). | | loading | boolean? = false | If true, the scrollBar goes into loading state. The default value is false. | | maxMotionBlur | number = 0.5 | Maximum motion blur effect. The default value is 0.5. | | motionBlur | number | 'disabled' = 0.15 | Motion blur effect. The default value is 0.25. | | motionBlurEnabled | boolean = false | Determines whether to apply motion blur or not. The default value is false. | | overscrollEnabled | boolean? = true | Determines whether the overscroll (re-scroll) feature will work. The default value is "true". | | overlappingScrollbar | boolean? = false | Determines whether the scroll bar will overlap the list. The default value is "false". | | scrollLeftOffset | FloatOrPersentageValue = 0 | Sets the scroll left offset value. Can be specified in absolute or percentage values. Supports arithmetic expressions of addition 50% + 25 or subtraction 50% - 25. Default value is "0". | | scrollRightOffset | FloatOrPersentageValue = 0 | Sets the scroll right offset value. Can be specified in absolute or percentage values. Supports arithmetic expressions of addition 50% + 25 or subtraction 50% - 25. Default value is "0". | | scrollTopOffset | FloatOrPersentageValue = 0 | Sets the scroll top offset value. Can be specified in absolute or percentage values. Supports arithmetic expressions of addition 50% + 25 or subtraction 50% - 25. Default value is "0". | | scrollBottomOffset | FloatOrPersentageValue = 0 | Sets the scroll bottom offset value. Can be specified in absolute or percentage values. Supports arithmetic expressions of addition 50% + 25 or subtraction 50% - 25. Default value is "0". | | snapToItem | boolean = false | Snap to an item. The default value is false. | | snapToItemAlign | SnapToItemAlign = SnapToItemAligns.CENTER | Alignment for snapToItem. Available values ​​are start, center, and end. The default value is center. | | snappingDistance | SnappingDistance = "25%" | Snapping activation distance. Can be specified as a percentage of the element size or in absolute values. The default value is 25%. | | snapScrollToLeft | boolean? = true | Determines whether the scrollbar is snapped to the left of the scroller. The default value is "true". That is, if snapScrollToLeft and snapScrollToRight are enabled, the scroller will initially snap to the left; if you move the scrollbar right, the scroller will snap to the right. If snapScrollToLeft is disabled and snapScrollToRight is enabled, the scroller will snap to the right; If you move the scrollbar left, the scroller will snap to the left. If both snapScrollToLeft and snapScrollToRight are disabled, the scroller will never snap to the left or right. In the spreadingMode=SpreadingModes.INFINITY mode, the snapScrollToRight property is automatically disabled because the list has no beginning or end. | | snapScrollToRight | boolean? = true | Determines whether the scrollbar is snapped to the right of the scroller. The default value is "true". That is, if snapScrollToRight and snapScrollToRight are enabled, the scroller will initially snap to the left; if you move the scrollbar right, the scroller will snap to the right. If snapScrollToLeft is disabled and snapScrollToRight is enabled, the scroller will snap to the right; If you move the scrollbar left, the scroller will snap to the left. If both snapScrollToLeft and snapScrollToRight are disabled, the scroller will never snap to the left or right. In the spreadingMode=SpreadingModes.INFINITY mode, the snapScrollToRight property is automatically disabled because the list has no beginning or end. | | snapScrollToTop | boolean? = true | Determines whether the scrollbar is snapped to the top of the scroller. The default value is "true". That is, if snapScrollToTop and snapScrollToBottom are enabled, the scroller will initially snap to the top; if you move the scrollbar down, the scroller will snap to the bottom. If snapScrollToTop is disabled and snapScrollToBottom is enabled, the scroller will snap to the bottom; If you move the scrollbar up, the scroller will snap to the top. If both snapScrollToTop and snapScrollToBottom are disabled, the scroller will never snap to the top or bottom. In the spreadingMode=SpreadingModes.INFINITY mode, the snapScrollToBottom property is automatically disabled because the list has no beginning or end. | | snapScrollToBottom | boolean? = true | Determines whether the scrollbar is snapped to the bottom of the scroller. The default value is "true". That is, if snapScrollToTop and snapScrollToBottom are enabled, the scroller will initially snap to the top; if you move the scrollbar down, the scroller will snap to the bottom. If snapScrollToTop is disabled and snapScrollToBottom is enabled, the scroller will snap to the bottom; If you move the scrollbar up, the scroller will snap to the top. If both snapScrollToTop and snapScrollToBottom are disabled, the scroller will never snap to the top or bottom. In the spreadingMode=SpreadingModes.INFINITY mode, the snapScrollToBottom property is automatically disabled because the list has no beginning or end. | | scrollable | boolean? = true | Determines whether the scrollbar is shown or not. The default value is "true". | | scrollbarEnabled | boolean? = true | Determines whether the scrollbar is shown or not. The default value is "true". | | scrollbarInteractive | boolean? = true | Determines whether scrolling using the scrollbar will be possible. The default value is "true". | | scrollbarMinSize | number? = 80 | Minimum scrollbar size. | | scrollbarThickness | number? = 6 | Scrollbar thickness. | | scrollbarThumbRenderer | TemplateRef | null = null | Scrollbar customization template. | | scrollbarThumbParams | {[propName: string]: any;} | null | Additional options for the scrollbar. | | scrollBehavior | ScrollBehavior? = 'smooth' | Defines the scrolling behavior for any element on the page. The default value is "smooth". | | scrollingSettings | IScrollingSettings = {frictionalForce: 0.035, mass: 0.005, maxDistance: 100000, maxDuration: 4000, speedScale: 10, optimization: true} | Scrolling settings. | | scrollingOneByOne | boolean = false | Specifies whether to scroll one item at a time if true and the scrollToItem property is set. The default value is false. | | spreadingMode | SpreadingMode ='standart' | The order of list elements. Available values ​​are standard and infinity. normal — list elements are ordered according to the collection sequence. infinity — list elements are ordered cyclically, forming an infinite list. When set to infinity, the alignment property is forced to the value Alignments.CENTER, the scrollbarEnabled property is forced to the false. The default value is standard. |

Outputs

| Event | Type | Description | |---|---|---| | onSnapItem | Id | Emit the component ID when an element crosses the alignment line specified by the snapToItemAlign property. | | onScroll | (IScrollEvent) => void | Fires when the list has been scrolled. | | onScrollEnd | (IScrollEvent) => void | Fires when the list has completed scrolling. | | onViewportChange | ISize | Fires when the viewport size is changed. | | onScrollReachLeft | void | Fires when the scroll reaches the left. | | onScrollReachRight | void | Fires when the scroll reaches the right. | | onScrollReachTop | void | Fires when the scroll reaches the top. | | onScrollReachBottom | void | Fires when the scroll reaches the bottom. |

Methods

| Method | Type | Description | |--|--|--| | scrollTo | (options: IScrollOptions) => Array | null | The method scrolls the scroll view and returns the animation ids if the behavior is set to smooth or null if the behavior is set to auto, instant, or not set. |

VirtualClickModule

Virtual click directive

To correctly handle interactive elements within a list, such as buttons, you need to use the VirtualClick directive.

import { NgVirtualScrollViewModule, VirtualClickModule } from 'ng-virtual-scroll-view';

@Component({
  selector: 'example',
  imports: [NgVirtualScrollViewModule, VirtualClickModule],
})

  <div virtualClick (onVirtualClick)="select(data.id)">
    <span>{{data.name}}</span>
  </div>

📄 License

MIT License

Copyright (c) 2026 djonnyx (Evgenii Alexandrovich Grebennikov)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.